Wobble wheel power transmission



Oct. 6,; 1931. w. F. PAUL WOBBLE WHEEL POW-IR TRANSMISSION Filed Sept. 2. 1930 3 Sheets-Sheet l I N VENTOR,

ATTORNEY.

Oct. 6, 1931. I w. F. PAUL 1,826,325 WOBBLE WHEEL POWER TRANSMISSIONk Y Filed' sebi. 2. 195o 5 sheets-sheet 2 A www@ m l? 3 \\\\\\\\\\\s (Mama i Oct. 6, 1931..

W. F. PAUL WOBBLE WHEEL POWER TRMXSMISSQNv Filed Sept. 2. 1930 f 3 Sheets-Sheet 3 ATTORNEY.

' Patented oa. e, 1931, 1,826,325..

wonnu. WHEEL rownn. TRANSMISSION 'Application led. September 2, 1930. Serial No.1479,180.

-. loto opposite sides of The object of this invention is to devise a novel wobble wheel power transmission, which although especially designed for use with a Diesel engine can be driven by any l gdesired type of powen j With the above and other objects in view,

' as will hereinafter more clearly appear, my invention comprehends a novel wobble wheel power transmission wherein power is applied a wobble wheelto eiect its revolution and thereby ofthe shaft to which it is connected. f

It further comprehends a novel wobble wheel havihg on opposite sides thereof a l novel construction` and arrangement of tracks and novel'power transmitting members which are provided with shoes to be received in said tracks, said shoes having anti-friction devices which engage the side walls of the ,at tracks.

For the purpose of illustrating the invention, 1 have shown in he accompanying drawings a typical embodiment of it, which, in practice, will give reliable and satisfactory results. 1t is, however, to be understood 3o that this embodiment is typical only and that the various instrumentalities of which my invention consists can be variously arranged and organized, and the invention is not limited to the precise arrangement and organization of these instrumentalities as herein set forth.

Figure 1 is a sectional plan view of a Dlesel crankless engine, in conjunction with which a wobble wheel power transmission embodying my invention is employed.A Figure 2 is a front elevation, partly broken away, of the wobble wheel.

Figure 3 is an end elevation of a carrier employed.

Figure 4 is an end elevation of a shoe and carrier in assembled position.

Figure 5 is a sectional view of a shoe 'andl its carrier:`

Figure 6 is a side elevation of one side of the wobble wheel.4

practice.

Fi re 7 is a front elevation of the wobble whee iii/detached position. v

Figure 8 -is aside elevation of thewobble wheel viewed from the opposite side to that seen in Figure 6.

Similar numerals of reference indicate corresponding parts.

Referring to the drawings: I have referred to illustrate my invention as being 1n the form of an eight cylinder en- 60 gine of the full Diesel type, it being understood that the number o engine cylindersu employed may be varied in accordance-with conditions and requirements met with in 1 designates the base which carries the frame 2 to which the engine cylinders 3, d, 5 and 6 are connected, it being understood J that there are four engine cylinders iocated above the engine c linders 3, e, 5 and 6.

Each engine cy 'nder is oi the same construction anda description of one wili therefore suiiice for ali.

Each engine cylinder has a combustion chamber 7 communicating by a port 8 with i5 its piston chamber 9 in which iatter a piston 10 reciprocates. 11 designates an air inlet port leading to a combustion chamber 7 and controlled by a spring pressed valve 12. 13 designates an exhaust port leading from a 'combustion chamber 7 and controiled by a spring pressed exhaust valve 14. Y

Each piston 10 `is provided with a piston rod 15 in threaded engagement therewith and secured in adjusted position by means of a nut 16. Each piston rod passes through an arm of its respective cross head 17 and is secured thereto by a clmpingimember 18. The inner end of a piston rod is in threaded engagement with a shoe carrier 19 forming 90 with a shoe 20, a ball and socket joint. Ail piston rod and itscarrier are locked in a'djusted position by means of a nut 21. Each carrier 19 is provided with a socket 22,`into which is fitted the ball 23 of the shoeAQO. 95 rEhe shoe 20 carries a roller bearing QA which engages only theside walls of an annular gui e groove or channel 25 in the side face of a wobblel wheel 26. The shoes 20 are provided with bronze plates 27 which ride onA 190 the bottom walls of the grooves 25. The cross heads 17 are slidable on and guided by the stationary bars 28, fixed to the engine frame.

29 designates the driven shaft which isy mounted in bearings 30. 'Ihe driven shaftv 29 isprovided withan enlarged tapered bearing portion 31 to which the wobble wheel 26 is connected by splines 32 so that the wobble wheel and shaft revolve in unison. 'Ihe driven shaft 29 has a thrust bearing 33 against which bears a spacing washer 34 and a nut 35, in threaded engagement with the driven shaft 29, locks the'wobble wheel 26. 1n fixed position on the shaft. A thrust bearing 36 is provided between the lock nut 35 and the juxtaposed bearing 30. It will be understood from the foregoing that I p rovide opposed pistons and the arrangement 1s such that the impulses are applied on opposite sides of the wobble wheele 26 to eect its v revolution and thereby the revolution of the driven shaft 29. 4

The effective length of the pistonrods l5 can be varied by adjustment of the nuts 16 or by adjustment of the nuts 2i and the shoe carriers i9. The driven shaft has fixed to it the sprocket g'ears 3"(y which are adapted to receive the timing chains.

.It will be clear from Figures 6 and 8 that the tracks are elliptical with the high point on one side of the wobble wheel opposite to the low point on the opposite side of the wobble wheel.

Special attention is directed to the action of the wobble wheel. It will be. seen that opposed explosions react against the wobble wheel simultaneous to effect its revolution, thereby the revolution of the driven shaft to which it is fixedly connected. In the present instance I use eight c linders so ,that

'v impulses are imparted to t e wobble wheel progressively ninety degrees apart.

Special attention is also directed to the novel mannerfin which the ball and socket joint is constructed and cooperates with the grooves or channels in the wobble wheely which form guide tracks so that there can be no binding or retarding between the shoes and the wobble wheel.

rIhe wobble wheel is mounted at an angle to the longitudinal axis of the driven shaft and I have found in practice that very ad- Vantageous results are obtained if this wobble wheel is mounted at an angle of 22% devrees.

pecial attention is directed to the novel construction andarrangement of the tracks on the wobble wheel which are disposed at the same angle as that of the wobble wheel and preferably at an angle of substantially 22% degrees. I have found that if these tracks are not employed there is a great loss of efficiency and the wobble wheel becomes locked with the shoes and there is excessive wear on the pistons and the walls of the engine cylinders. This loss of efficiency, excessive friction and locking of the wobble wheel is overcome by the use of the tracks on the wobble wheel as herein disclosed.

In Fi re 2 I have shown means for effecting the ubrication of the tracks and in Figure 5 means for effecting lubrication of the universal joint connection of a shoe and its carrier.

It will now be apparent that I have devised a new and usefulwobble wheel power transmission which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description, and while I have, in the present instance, shown and described a preferred embodiment thereof which will give in practice satisfactory and reliable results, it is to be understood that this embodiment is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages. Having thus described my invention what I claim as new and desire to secure by Letters Iatent, is i f i. In a wobble wheel power transmission, a shaft, a wobble wheel operatively connected therewith, said wheel having surfaces to function as'tracks, said tracks being eccentrically disposed relative to the axis of said wheel, instrumentalities cooperating with said wheel to transmit power, and means adjacent the outer edges of said tracks and forming a part of said wheel to prevent said instrumentalities from becoming locked with said wheel.

2. In a wobble wheel power transmission, a driven shaft, a wobble wheel xedly connected therto and disposed at an angle to the longitudinal axis of said shaft and provided on opposite faces with endless guide tracks, shoes in` said tracks, and means to cause said shoes to exert pressure against said tracks respect to the shaft, and provided on opposite faces with endless tracks, shoes slidable in said tracks, rods having a universal joint connection .with said shoes, and means to cause a rectilinear movement of said rods to effect the revolution of said wobble wheel.

`t. In a wobble wheel power transmission, a driven shaft, a wobble wheel ixedly connected therewith and having annular guide tracks on opposite sides, said tracks being disposed eccentrically to the axle of said wheel, shoes cooperating with said tracks, carriers for said shoes, said shoes forming a ball socket connection, and means to cause said carriers and shoes to exert pressure against opposite sides of said wobble wheel to effect its revolution, and means adjacent the outer edges of 2@ nected therewith and angularly inclined with said tracks and ormin a part of said wheel to prevent said shoes om becoming locked with said wheel.

5. In a wobble wheel power transmission, a 5 driven shaft, a wobble wheel ixedly connected thereto in an inclined position and provided with annular guide tracks on opposite faces, said tracks being disposed eccentrically to the axis of said wheel, shoes com operating with said tracks, push rods movably connected with said shoes, means, to cause the eiect of said push rods to be imarted to the wobble wheel at locations ninety egrees apart, and-means adjacent the outer edges of said tracks and forming a part of said wheel to prevent said shoes from becoming locked with said wheel.

6. In a wobble wheel power transmission, a driven shaft, a wobble wheel rigidly conrespect to the shaft, and provided on opposite faces with endless guide tracks disposed at right angles to the juxtaposed face of the wobble wheel, shoes in said tracks, anti-friction devices carried by said shoes to engage the side walls of its track, and means connected with said shoes to exert a pressure against opposite sides of said wobble wheel.

7. In a wobble wheel power transmission, a se driven shaft, a wobble wheel fixed thereto in l an inclined position and having on opposite sides endless tracks, shoes slidable in said, tracks, push membershaving a universal joint connection with said shoes, anti-friction bear- $5' ings for said shoes engaging the side walls of their respective tracks7 cross heads fixed to opposite plston rods, guides on which said cross heads are slidable, and means to cause push rods on o posite sides of said wobble m' wheel to simu taneously exert a pressure l against it to eiect its revolution.

8. In a wobble wheel power transmission, a driven shaft, a wobble wheel fixed thereto gin an inclined position and having endless tracks on opposltefaces which are eccentrically disposed relatively to the axis of said v driven shaft, the high point of the eccentric track on one side being opposite to the low v point of the eccentric track on the opposite v side, means to exert pressure against sald tracks to effect the revolution of said wobble `wheel and thereby of said driven shaft, and means adjacent the outer edges of said tracks and forming a part of said wheel to prevent S5 said first means from becoming locked with said wQheel.

WILLIAM F. PAUL. 

